Package org.apache.lucene.document
Document
for indexing and
searching.
The document package provides the user level logical representation of content to be indexed
and searched. The package also provides utilities for working with Document
s and IndexableField
s.
Document and IndexableField
A Document
is a collection of IndexableField
s. A IndexableField
is a
logical representation of a user's content that needs to be indexed or stored. IndexableField
s have a number of properties that tell Lucene how to
treat the content (like indexed, tokenized, stored, etc.) See the Field
implementation of IndexableField
for specifics on these properties.
Note: it is common to refer to Document
s having Field
s, even though technically they have IndexableField
s.
Working with Documents
First and foremost, a Document
is something created by the
user application. It is your job to create Documents based on the content of the files you are
working with in your application (Word, txt, PDF, Excel or any other format.) How this is done is
completely up to you. That being said, there are many tools available in other projects that can
make the process of taking a file and converting it into a Lucene Document
.
The DateTools
is a utility class to make dates and times
searchable. IntPoint
, LongPoint
, FloatPoint
and DoublePoint
enable indexing of numeric values (and also dates) for
fast range queries using PointRangeQuery
-
ClassDescriptionField that stores a per-document
BytesRef
value.An indexed binary field for fast range filters.Provides support for converting dates to strings and vice-versa.Specifies the time granularity.Documents are the unit of indexing and search.AStoredFieldVisitor
that creates aDocument
from stored fields.Syntactic sugar for encoding doubles as NumericDocValues viaDouble.doubleToRawLongBits(double)
.An indexeddouble
field for fast range filters.An indexed Double Range field.DocValues field for DoubleRange.Field
that can be used to store static scoring factors into documents.Expert: directly create a field for a document.Specifies whether and how a field should be stored.Describes the properties of a field.Syntactic sugar for encoding floats as NumericDocValues viaFloat.floatToRawIntBits(float)
.An indexedfloat
field for fast range filters.An indexed Float Range field.DocValues field for FloatRange.An indexed 128-bitInetAddress
field.An indexed InetAddress Range FieldAn indexedint
field for fast range filters.An indexed Integer Range field.DocValues field for IntRange.A field that contains a single floating-point numeric vector (or none) for each document.An per-document location field.An indexed location field.An geo shape utility class for indexing and searching gis geometries whose vertices are latitude, longitude values (in decimal degrees).An indexedlong
field for fast range filters.An indexed Long Range field.DocValues field for LongRange.Field that stores a per-documentlong
value for scoring, sorting or value retrieval.Query class for searchingRangeField
types by a definedPointValues.Relation
.Used byRangeFieldQuery
to check how each internal or leaf node relates to the query.A base shape utility class used for both LatLon (spherical) and XY (cartesian) shape fields.Represents a encoded triangle usingShapeField.decodeTriangle(byte[], DecodedTriangle)
.type of triangleQuery Relation Types *polygons are decomposed into tessellated triangles usingTessellator
these triangles are encoded and inserted as separate indexed POINT fieldsField that stores a per-documentBytesRef
value, indexed for sorting.Field that stores a per-documentlong
values for scoring, sorting or value retrieval.Field that stores a set of per-documentBytesRef
values, indexed for faceting,grouping,joining.A field whose value is stored so thatIndexSearcher.doc(int)
andIndexReader.document()
will return the field and its value.A field that is indexed but not tokenized: the entire String value is indexed as a single token.A field that is indexed and tokenized, without term vectors.An per-document location field.XYGeometry query forXYDocValuesField
.An indexed XY position field.A cartesian shape utility class for indexing and searching geometries whose vertices are unitless x, y values.